A thrill-seeking cyclist has been taking on death-defying rides down sheer cliffs and treacherous staircases.<br /><br />Edward Hayden, 26, an experienced mountain biker, has been honing his skills for over a decade.<br /><br />Edward has turned the San Francisco's steep hills and rugged terrain into his personal playground. <br /><br />But only in the last year he's started filming his jaw-dropping descents.<br /><br />Helmet cam footage shows Edward tackling some of the city’s most dangerous terrain from rocky outcrops near the Golden Gate Bridge to sheer staircases and loose dirt trails.